/* ===========================================================
 
* JFreeChart : a free chart library for the Java(tm) platform
 
* ===========================================================
 
*
 
* (C) Copyright 2000-2016, by Object Refinery Limited and Contributors.
 
*
 
* Project Info:
  
http://www.jfree.org/jfreechart/index.html
 
*
 
* This library is free software; you can redistribute it and/or modify it
 
* under the terms of the GNU Lesser General Public License as published by
 
* the Free Software Foundation; either version 2.1 of the License, or
 
* (at your option) any later version.
 
*
 
* This library is distributed in the hope that it will be useful, but
 
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 
* License for more details.
 
*
 
* You should have received a copy of the GNU Lesser General Public
 
* License along with this library; if not, write to the Free Software
 
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  
02110-1301,
 
* USA.
 
*
 
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
 
* Other names may be trademarks of their respective owners.]
 
*
 
* -----------------
 
* DateAxisTest.java
 
* -----------------
 
* (C) Copyright 2003-2016, by Object Refinery Limited and Contributors.
 
*
 
* Original Author:
  
David Gilbert (for Object Refinery Limited);
 
* Contributor(s):
   
-;
 
*
 
* Changes
 
* -------
 
* 22-Apr-2003 : Version 1 (DG);
 
* 07-Jan-2005 : Added test for hashCode() method (DG);
 
* 25-Sep-2005 : New tests for bug 1564977 (DG);
 
* 19-Apr-2007 : Added further checks for setMinimumDate() and
 
*
               
setMaximumDate() (DG);
 
* 03-May-2007 : Replaced the tests for the previousStandardDate() method with
 
*
               
new tests that check that the previousStandardDate and the
 
*
               
next standard date do in fact span the reference date (DG);
 
* 25-Nov-2008 : Added testBug2201869 (DG);
 
* 08-Feb-2012 : Added testBug3484403 (MH);
 
* 29-Aug-2016 : Added testBug25 (DG);
 
*
 
*/

package org.jfree.chart.axis;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import org.junit.Test;

import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.List;
import java.util.Locale;
import java.util.TimeZone;

import org.jfree.chart.TestUtils;
import org.jfree.chart.ui.RectangleEdge;

import org.jfree.data.time.DateRange;
import org.jfree.data.time.Day;
import org.jfree.data.time.Hour;
import org.jfree.data.time.Millisecond;
import org.jfree.data.time.Minute;
import org.jfree.data.time.Month;
import org.jfree.data.time.Second;
import org.jfree.data.time.Year;

/**
 
* Tests for the {@link DateAxis} class.
 
*/
public class DateAxisTest {

    
static class MyDateAxis extends DateAxis {

        
/**
         
* Creates a new instance.
         
*
         
* @param label
  
the label.
         
*/

        
public MyDateAxis(String label) {
            
super(label);
        
}

        
@Override
        
public Date previousStandardDate(Date d, DateTickUnit unit) {
            
return super.previousStandardDate(d, unit);
        
}
    
}

    
/**
     
* Confirm that the equals method can distinguish all the required fields.
     
*/

    
@Test
    
public void testEquals() {

        
DateAxis a1 = new DateAxis("Test");
        
DateAxis a2 = new DateAxis("Test");
        
assertTrue(a1.equals(a2));
        
assertFalse(a1.equals(null));
        
assertFalse(a1.equals("Some non-DateAxis object"));

        
a1 = new DateAxis("Test", TimeZone.getTimeZone("PST"), Locale.US);
        
assertFalse(a1.equals(a2));
        
a2 = new DateAxis("Test", TimeZone.getTimeZone("PST"), Locale.US);
        
assertTrue(a1.equals(a2));
        

        
a1 = new DateAxis("Test", TimeZone.getTimeZone("PST"), Locale.FRANCE);
        
assertFalse(a1.equals(a2));
        
a2 = new DateAxis("Test", TimeZone.getTimeZone("PST"), Locale.FRANCE);
        
assertTrue(a1.equals(a2));

        
// tickUnit
        
a1.setTickUnit(new DateTickUnit(DateTickUnitType.DAY, 7));
        
assertFalse(a1.equals(a2));
        
a2.setTickUnit(new DateTickUnit(DateTickUnitType.DAY, 7));
        
assertTrue(a1.equals(a2));

        
// dateFormatOverride
        
a1.setDateFormatOverride(new SimpleDateFormat("yyyy"));
        
assertFalse(a1.equals(a2));
        
a2.setDateFormatOverride(new SimpleDateFormat("yyyy"));
        
assertTrue(a1.equals(a2));

        
// tickMarkPosition
        
a1.setTickMarkPosition(DateTickMarkPosition.END);
        
assertFalse(a1.equals(a2));
        
a2.setTickMarkPosition(DateTickMarkPosition.END);
        
assertTrue(a1.equals(a2));

    
}

    
/**
     
* A test for bug report 1472942.
  
The DateFormat.equals() method is not
     
* checking the range attribute.
     
*/

    
@Test
    
public void test1472942() {
        
DateAxis a1 = new DateAxis("Test");
        
DateAxis a2 = new DateAxis("Test");
        
assertTrue(a1.equals(a2));

        
// range
        
a1.setRange(new Date(1L), new Date(2L));
        
assertFalse(a1.equals(a2));
        
a2.setRange(new Date(1L), new Date(2L));
        
assertTrue(a1.equals(a2));
    
}

    
/**
     
* Two objects that are equal are required to return the same hashCode.
     
*/

    
@Test
    
public void testHashCode() {
        
DateAxis a1 = new DateAxis("Test");
        
DateAxis a2 = new DateAxis("Test");
        
assertTrue(a1.equals(a2));
        
int h1 = a1.hashCode();
        
int h2 = a2.hashCode();
        
assertEquals(h1, h2);
    
}

    
/**
     
* Confirm that cloning works.
     
*/
    
@Test
    
public void testCloning() throws CloneNotSupportedException {
        
DateAxis a1 = new DateAxis("Test");
        
DateAxis a2 = (DateAxis) a1.clone();
        
assertTrue(a1 != a2);
        
assertTrue(a1.getClass() == a2.getClass());
        
assertTrue(a1.equals(a2));
    
}

    
/**
     
* Test that the setRange() method works.
     
*/
    
@Test
    
public void testSetRange() {

        
DateAxis axis = new DateAxis("Test Axis");
        
Calendar calendar = Calendar.getInstance();
        
calendar.set(1999, Calendar.JANUARY, 3);
        
Date d1 = calendar.getTime();
        
calendar.set(1999, Calendar.JANUARY, 31);
        
Date d2 = calendar.getTime();
        
axis.setRange(d1, d2);

        
DateRange range = (DateRange) axis.getRange();
        
assertEquals(d1, range.getLowerDate());
        
assertEquals(d2, range.getUpperDate());

    
}

    
/**
     
* Test that the setMaximumDate() method works.
     
*/
    
@Test
    
public void testSetMaximumDate() {
        
DateAxis axis = new DateAxis("Test Axis");
        
Date date = new Date();
        
axis.setMaximumDate(date);
        
assertEquals(date, axis.getMaximumDate());

        
// check that setting the max date to something on or before the
        
// current min date works...
        
Date d1 = new Date();
        
Date d2 = new Date(d1.getTime() + 1);
        
Date d0 = new Date(d1.getTime() - 1);
        
axis.setMaximumDate(d2);
        
axis.setMinimumDate(d1);
        
axis.setMaximumDate(d1);
        
assertEquals(d0, axis.getMinimumDate());
    
}

    
/**
     
* Test that the setMinimumDate() method works.
     
*/
    
@Test
    
public void testSetMinimumDate() {
        
DateAxis axis = new DateAxis("Test Axis");
        
Date d1 = new Date();
        
Date d2 = new Date(d1.getTime() + 1);
        
axis.setMaximumDate(d2);
        
axis.setMinimumDate(d1);
        
assertEquals(d1, axis.getMinimumDate());

        
// check that setting the min date to something on or after the
        
// current min date works...
        
Date d3 = new Date(d2.getTime() + 1);
        
axis.setMinimumDate(d2);
        
assertEquals(d3, axis.getMaximumDate());
    
}

    
/**
     
* Tests two doubles for 'near enough' equality.
     
*
     
* @param d1
  
number 1.
     
* @param d2
  
number 2.
     
* @param tolerance
  
maximum tolerance.
     
*
     
* @return A boolean.
     
*/

    
private boolean same(double d1, double d2, double tolerance) {
        
return (Math.abs(d1 - d2) < tolerance);
    
}

    
/**
     
* Test the translation of Java2D values to data values.
     
*/
    
@Test
    
public void testJava2DToValue() {
        
DateAxis axis = new DateAxis();
        
axis.setRange(50.0, 100.0);
        
Rectangle2D dataArea = new Rectangle2D.Double(10.0, 50.0, 400.0, 300.0);
        
double y1 = axis.java2DToValue(75.0, dataArea, RectangleEdge.LEFT);
        
assertTrue(same(y1, 95.8333333, 1.0));
        
double y2 = axis.java2DToValue(75.0, dataArea, RectangleEdge.RIGHT);
        
assertTrue(same(y2, 95.8333333, 1.0));
        
double x1 = axis.java2DToValue(75.0, dataArea, RectangleEdge.TOP);
        
assertTrue(same(x1, 58.125, 1.0));
        
double x2 = axis.java2DToValue(75.0, dataArea, RectangleEdge.BOTTOM);
        
assertTrue(same(x2, 58.125, 1.0));
        
axis.setInverted(true);
        
double y3 = axis.java2DToValue(75.0, dataArea, RectangleEdge.LEFT);
        
assertTrue(same(y3, 54.1666667, 1.0));
        
double y4 = axis.java2DToValue(75.0, dataArea, RectangleEdge.RIGHT);
        
assertTrue(same(y4, 54.1666667, 1.0));
        
double x3 = axis.java2DToValue(75.0, dataArea, RectangleEdge.TOP);
        
assertTrue(same(x3, 91.875, 1.0));
        
double x4 = axis.java2DToValue(75.0, dataArea, RectangleEdge.BOTTOM);
        
assertTrue(same(x4, 91.875, 1.0));
    
}

    
/**
     
* Serialize an instance, restore it, and check for equality.
     
*/

    
@Test
    
public void testSerialization() {
        
DateAxis a1 = new DateAxis("Test Axis");
        
DateAxis a2 = (DateAxis) TestUtils.serialised(a1);
        
assertEquals(a1, a2);
    
}

    
/**
     
* A basic check for the testPreviousStandardDate() method when the
     
* tick unit is 1 year.
     
*/

    
@Test
    
public void testPreviousStandardDateYearA() {
        
MyDateAxis axis = new MyDateAxis("Year");
        
Year y2006 = new Year(2006);
        
Year y2007 = new Year(2007);

        
// five dates to check...
        
Date d0 = new Date(y2006.getFirstMillisecond());
        
Date d1 = new Date(y2006.getFirstMillisecond() + 500L);
        
Date d2 = new Date(y2006.getMiddleMillisecond());
        
Date d3 = new Date(y2006.getMiddleMillisecond() + 500L);
        
Date d4 = new Date(y2006.getLastMillisecond());

        
Date end = new Date(y2007.getLastMillisecond());

        
DateTickUnit unit = new DateTickUnit(DateTickUnitType.YEAR, 1);
        
axis.setTickUnit(unit);

        
// START: check d0 and d1
        
axis.setTickMarkPosition(DateTickMarkPosition.START);

        
axis.setRange(d0, end);
        
Date psd = axis.previousStandardDate(d0, unit);
        
Date nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d0.getTime());
        
assertTrue(nsd.getTime() >= d0.getTime());

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
// MIDDLE: check d1, d2 and d3
        
axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
axis.setRange(d2, end);
        
psd = axis.previousStandardDate(d2, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d2.getTime());
        
assertTrue(nsd.getTime() >= d2.getTime());

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
// END: check d3 and d4
        
axis.setTickMarkPosition(DateTickMarkPosition.END);

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
axis.setRange(d4, end);
        
psd = axis.previousStandardDate(d4, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d4.getTime());
        
assertTrue(nsd.getTime() >= d4.getTime());
    
}

    
/**
     
* A basic check for the testPreviousStandardDate() method when the
     
* tick unit is 10 years (just for the sake of having a multiple).
     
*/

    
@Test
    
public void testPreviousStandardDateYearB() {
        
MyDateAxis axis = new MyDateAxis("Year");
        
Year y2006 = new Year(2006);
        
Year y2007 = new Year(2007);

        
// five dates to check...
        
Date d0 = new Date(y2006.getFirstMillisecond());
        
Date d1 = new Date(y2006.getFirstMillisecond() + 500L);
        
Date d2 = new Date(y2006.getMiddleMillisecond());
        
Date d3 = new Date(y2006.getMiddleMillisecond() + 500L);
        
Date d4 = new Date(y2006.getLastMillisecond());

        
Date end = new Date(y2007.getLastMillisecond());

        
DateTickUnit unit = new DateTickUnit(DateTickUnitType.YEAR, 10);
        
axis.setTickUnit(unit);

        
// START: check d0 and d1
        
axis.setTickMarkPosition(DateTickMarkPosition.START);

        
axis.setRange(d0, end);
        
Date psd = axis.previousStandardDate(d0, unit);
        
Date nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d0.getTime());
        
assertTrue(nsd.getTime() >= d0.getTime());

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
// MIDDLE: check d1, d2 and d3
        
axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
axis.setRange(d2, end);
        
psd = axis.previousStandardDate(d2, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d2.getTime());
        
assertTrue(nsd.getTime() >= d2.getTime());

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
// END: check d3 and d4
        
axis.setTickMarkPosition(DateTickMarkPosition.END);

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
axis.setRange(d4, end);
        
psd = axis.previousStandardDate(d4, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d4.getTime());
        
assertTrue(nsd.getTime() >= d4.getTime());
    
}

    
/**
     
* A basic check for the testPreviousStandardDate() method when the
     
* tick unit is 1 month.
     
*/

    
@Test
    
public void testPreviousStandardDateMonthA() {
        
MyDateAxis axis = new MyDateAxis("Month");
        
Month nov2006 = new Month(11, 2006);
        
Month dec2006 = new Month(12, 2006);

        
// five dates to check...
        
Date d0 = new Date(nov2006.getFirstMillisecond());
        
Date d1 = new Date(nov2006.getFirstMillisecond() + 500L);
        
Date d2 = new Date(nov2006.getMiddleMillisecond());
        
Date d3 = new Date(nov2006.getMiddleMillisecond() + 500L);
        
Date d4 = new Date(nov2006.getLastMillisecond());

        
Date end = new Date(dec2006.getLastMillisecond());

        
DateTickUnit unit = new DateTickUnit(DateTickUnitType.MONTH, 1);
        
axis.setTickUnit(unit);

        
// START: check d0 and d1
        
axis.setTickMarkPosition(DateTickMarkPosition.START);

        
axis.setRange(d0, end);
        
Date psd = axis.previousStandardDate(d0, unit);
        
Date nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d0.getTime());
        
assertTrue(nsd.getTime() >= d0.getTime());

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
// MIDDLE: check d1, d2 and d3
        
axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
axis.setRange(d2, end);
        
psd = axis.previousStandardDate(d2, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d2.getTime());
        
assertTrue(nsd.getTime() >= d2.getTime());

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
// END: check d3 and d4
        
axis.setTickMarkPosition(DateTickMarkPosition.END);

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
axis.setRange(d4, end);
        
psd = axis.previousStandardDate(d4, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d4.getTime());
        
assertTrue(nsd.getTime() >= d4.getTime());
    
}

    
/**
     
* A basic check for the testPreviousStandardDate() method when the
     
* tick unit is 3 months (just for the sake of having a multiple).
     
*/

    
@Test
    
public void testPreviousStandardDateMonthB() {
        
MyDateAxis axis = new MyDateAxis("Month");
        
Month nov2006 = new Month(11, 2006);
        
Month dec2006 = new Month(12, 2006);

        
// five dates to check...
        
Date d0 = new Date(nov2006.getFirstMillisecond());
        
Date d1 = new Date(nov2006.getFirstMillisecond() + 500L);
        
Date d2 = new Date(nov2006.getMiddleMillisecond());
        
Date d3 = new Date(nov2006.getMiddleMillisecond() + 500L);
        
Date d4 = new Date(nov2006.getLastMillisecond());

        
Date end = new Date(dec2006.getLastMillisecond());

        
DateTickUnit unit = new DateTickUnit(DateTickUnitType.MONTH, 3);
        
axis.setTickUnit(unit);

        
// START: check d0 and d1
        
axis.setTickMarkPosition(DateTickMarkPosition.START);

        
axis.setRange(d0, end);
        
Date psd = axis.previousStandardDate(d0, unit);
        
Date nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d0.getTime());
        
assertTrue(nsd.getTime() >= d0.getTime());

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
// MIDDLE: check d1, d2 and d3
        
axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
axis.setRange(d2, end);
        
psd = axis.previousStandardDate(d2, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d2.getTime());
        
assertTrue(nsd.getTime() >= d2.getTime());

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
// END: check d3 and d4
        
axis.setTickMarkPosition(DateTickMarkPosition.END);

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
axis.setRange(d4, end);
        
psd = axis.previousStandardDate(d4, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d4.getTime());
        
assertTrue(nsd.getTime() >= d4.getTime());
    
}

    
/**
     
* A basic check for the testPreviousStandardDate() method when the
     
* tick unit is 1 day.
     
*/
    
@Test
    
public void testPreviousStandardDateDayA() {
        
MyDateAxis axis = new MyDateAxis("Day");
        
Day apr12007 = new Day(1, 4, 2007);
        
Day apr22007 = new Day(2, 4, 2007);

        
// five dates to check...
        
Date d0 = new Date(apr12007.getFirstMillisecond());
        
Date d1 = new Date(apr12007.getFirstMillisecond() + 500L);
        
Date d2 = new Date(apr12007.getMiddleMillisecond());
        
Date d3 = new Date(apr12007.getMiddleMillisecond() + 500L);
        
Date d4 = new Date(apr12007.getLastMillisecond());

        
Date end = new Date(apr22007.getLastMillisecond());

        
DateTickUnit unit = new DateTickUnit(DateTickUnitType.DAY, 1);
        
axis.setTickUnit(unit);

        
// START: check d0 and d1
        
axis.setTickMarkPosition(DateTickMarkPosition.START);

        
axis.setRange(d0, end);
        
Date psd = axis.previousStandardDate(d0, unit);
        
Date nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d0.getTime());
        
assertTrue(nsd.getTime() >= d0.getTime());

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
// MIDDLE: check d1, d2 and d3
        
axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
axis.setRange(d2, end);
        
psd = axis.previousStandardDate(d2, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d2.getTime());
        
assertTrue(nsd.getTime() >= d2.getTime());

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
// END: check d3 and d4
        
axis.setTickMarkPosition(DateTickMarkPosition.END);

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
axis.setRange(d4, end);
        
psd = axis.previousStandardDate(d4, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d4.getTime());
        
assertTrue(nsd.getTime() >= d4.getTime());
    
}

    
/**
     
* A basic check for the testPreviousStandardDate() method when the
     
* tick unit is 7 days (just for the sake of having a multiple).
     
*/

    
@Test
    
public void testPreviousStandardDateDayB() {
        
MyDateAxis axis = new MyDateAxis("Day");
        
Day apr12007 = new Day(1, 4, 2007);
        
Day apr22007 = new Day(2, 4, 2007);

        
// five dates to check...
        
Date d0 = new Date(apr12007.getFirstMillisecond());
        
Date d1 = new Date(apr12007.getFirstMillisecond() + 500L);
        
Date d2 = new Date(apr12007.getMiddleMillisecond());
        
Date d3 = new Date(apr12007.getMiddleMillisecond() + 500L);
        
Date d4 = new Date(apr12007.getLastMillisecond());

        
Date end = new Date(apr22007.getLastMillisecond());

        
DateTickUnit unit = new DateTickUnit(DateTickUnitType.DAY, 7);
        
axis.setTickUnit(unit);

        
// START: check d0 and d1
        
axis.setTickMarkPosition(DateTickMarkPosition.START);

        
axis.setRange(d0, end);
        
Date psd = axis.previousStandardDate(d0, unit);
        
Date nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d0.getTime());
        
assertTrue(nsd.getTime() >= d0.getTime());

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
// MIDDLE: check d1, d2 and d3
        
axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
axis.setRange(d2, end);
        
psd = axis.previousStandardDate(d2, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d2.getTime());
        
assertTrue(nsd.getTime() >= d2.getTime());

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
// END: check d3 and d4
        
axis.setTickMarkPosition(DateTickMarkPosition.END);

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
axis.setRange(d4, end);
        
psd = axis.previousStandardDate(d4, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d4.getTime());
        
assertTrue(nsd.getTime() >= d4.getTime());
    
}

    
/**
     
* A basic check for the testPreviousStandardDate() method when the
     
* tick unit is 1 hour.
     
*/

    
@Test
    
public void testPreviousStandardDateHourA() {
        
MyDateAxis axis = new MyDateAxis("Hour");
        
Hour h0 = new Hour(12, 1, 4, 2007);
        
Hour h1 = new Hour(13, 1, 4, 2007);

        
// five dates to check...
        
Date d0 = new Date(h0.getFirstMillisecond());
        
Date d1 = new Date(h0.getFirstMillisecond() + 500L);
        
Date d2 = new Date(h0.getMiddleMillisecond());
        
Date d3 = new Date(h0.getMiddleMillisecond() + 500L);
        
Date d4 = new Date(h0.getLastMillisecond());

        
Date end = new Date(h1.getLastMillisecond());

        
DateTickUnit unit = new DateTickUnit(DateTickUnitType.HOUR, 1);
        
axis.setTickUnit(unit);

        
// START: check d0 and d1
        
axis.setTickMarkPosition(DateTickMarkPosition.START);

        
axis.setRange(d0, end);
        
Date psd = axis.previousStandardDate(d0, unit);
        
Date nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d0.getTime());
        
assertTrue(nsd.getTime() >= d0.getTime());

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
// MIDDLE: check d1, d2 and d3
        
axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
axis.setRange(d2, end);
        
psd = axis.previousStandardDate(d2, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d2.getTime());
        
assertTrue(nsd.getTime() >= d2.getTime());

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
// END: check d3 and d4
        
axis.setTickMarkPosition(DateTickMarkPosition.END);

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
axis.setRange(d4, end);
        
psd = axis.previousStandardDate(d4, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d4.getTime());
        
assertTrue(nsd.getTime() >= d4.getTime());
    
}

    
/**
     
* A basic check for the testPreviousStandardDate() method when the
     
* tick unit is 6 hours (just for the sake of having a multiple).
     
*/

    
@Test
    
public void testPreviousStandardDateHourB() {
        
MyDateAxis axis = new MyDateAxis("Hour");
        
Hour h0 = new Hour(12, 1, 4, 2007);
        
Hour h1 = new Hour(13, 1, 4, 2007);

        
// five dates to check...
        
Date d0 = new Date(h0.getFirstMillisecond());
        
Date d1 = new Date(h0.getFirstMillisecond() + 500L);
        
Date d2 = new Date(h0.getMiddleMillisecond());
        
Date d3 = new Date(h0.getMiddleMillisecond() + 500L);
        
Date d4 = new Date(h0.getLastMillisecond());

        
Date end = new Date(h1.getLastMillisecond());

        
DateTickUnit unit = new DateTickUnit(DateTickUnitType.HOUR, 6);
        
axis.setTickUnit(unit);

        
// START: check d0 and d1
        
axis.setTickMarkPosition(DateTickMarkPosition.START);

        
axis.setRange(d0, end);
        
Date psd = axis.previousStandardDate(d0, unit);
        
Date nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d0.getTime());
        
assertTrue(nsd.getTime() >= d0.getTime());

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
// MIDDLE: check d1, d2 and d3
        
axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
axis.setRange(d2, end);
        
psd = axis.previousStandardDate(d2, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d2.getTime());
        
assertTrue(nsd.getTime() >= d2.getTime());

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
// END: check d3 and d4
        
axis.setTickMarkPosition(DateTickMarkPosition.END);

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
axis.setRange(d4, end);
        
psd = axis.previousStandardDate(d4, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d4.getTime());
        
assertTrue(nsd.getTime() >= d4.getTime());
    
}

    
/**
     
* A basic check for the testPreviousStandardDate() method when the
     
* tick unit is 1 second.
     
*/

    
@Test
    
public void testPreviousStandardDateSecondA() {
        
MyDateAxis axis = new MyDateAxis("Second");
        
Second s0 = new Second(58, 31, 12, 1, 4, 2007);
        
Second s1 = new Second(59, 31, 12, 1, 4, 2007);

        
// five dates to check...
        
Date d0 = new Date(s0.getFirstMillisecond());
        
Date d1 = new Date(s0.getFirstMillisecond() + 50L);
        
Date d2 = new Date(s0.getMiddleMillisecond());
        
Date d3 = new Date(s0.getMiddleMillisecond() + 50L);
        
Date d4 = new Date(s0.getLastMillisecond());

        
Date end = new Date(s1.getLastMillisecond());

        
DateTickUnit unit = new DateTickUnit(DateTickUnitType.SECOND, 1);
        
axis.setTickUnit(unit);

        
// START: check d0 and d1
        
axis.setTickMarkPosition(DateTickMarkPosition.START);

        
axis.setRange(d0, end);
        
Date psd = axis.previousStandardDate(d0, unit);
        
Date nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d0.getTime());
        
assertTrue(nsd.getTime() >= d0.getTime());

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
// MIDDLE: check d1, d2 and d3
        
axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
axis.setRange(d2, end);
        
psd = axis.previousStandardDate(d2, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d2.getTime());
        
assertTrue(nsd.getTime() >= d2.getTime());

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
// END: check d3 and d4
        
axis.setTickMarkPosition(DateTickMarkPosition.END);

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
axis.setRange(d4, end);
        
psd = axis.previousStandardDate(d4, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d4.getTime());
        
assertTrue(nsd.getTime() >= d4.getTime());
    
}

    
/**
     
* A basic check for the testPreviousStandardDate() method when the
     
* tick unit is 5 seconds (just for the sake of having a multiple).
     
*/

    
@Test
    
public void testPreviousStandardDateSecondB() {
        
MyDateAxis axis = new MyDateAxis("Second");
        
Second s0 = new Second(58, 31, 12, 1, 4, 2007);
        
Second s1 = new Second(59, 31, 12, 1, 4, 2007);

        
// five dates to check...
        
Date d0 = new Date(s0.getFirstMillisecond());
        
Date d1 = new Date(s0.getFirstMillisecond() + 50L);
        
Date d2 = new Date(s0.getMiddleMillisecond());
        
Date d3 = new Date(s0.getMiddleMillisecond() + 50L);
        
Date d4 = new Date(s0.getLastMillisecond());

        
Date end = new Date(s1.getLastMillisecond());

        
DateTickUnit unit = new DateTickUnit(DateTickUnitType.SECOND, 5);
        
axis.setTickUnit(unit);

        
// START: check d0 and d1
        
axis.setTickMarkPosition(DateTickMarkPosition.START);

        
axis.setRange(d0, end);
        
Date psd = axis.previousStandardDate(d0, unit);
        
Date nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d0.getTime());
        
assertTrue(nsd.getTime() >= d0.getTime());

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
// MIDDLE: check d1, d2 and d3
        
axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);

        
axis.setRange(d1, end);
        
psd = axis.previousStandardDate(d1, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d1.getTime());
        
assertTrue(nsd.getTime() >= d1.getTime());

        
axis.setRange(d2, end);
        
psd = axis.previousStandardDate(d2, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d2.getTime());
        
assertTrue(nsd.getTime() >= d2.getTime());

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
// END: check d3 and d4
        
axis.setTickMarkPosition(DateTickMarkPosition.END);

        
axis.setRange(d3, end);
        
psd = axis.previousStandardDate(d3, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d3.getTime());
        
assertTrue(nsd.getTime() >= d3.getTime());

        
axis.setRange(d4, end);
        
psd = axis.previousStandardDate(d4, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d4.getTime());
        
assertTrue(nsd.getTime() >= d4.getTime());
    
}

    
/**
     
* A basic check for the testPreviousStandardDate() method when the
     
* tick unit is 1 millisecond.
     
*/

    
@Test
    
public void testPreviousStandardDateMillisecondA() {
        
MyDateAxis axis = new MyDateAxis("Millisecond");
        
Millisecond m0 = new Millisecond(458, 58, 31, 12, 1, 4, 2007);
        
Millisecond m1 = new Millisecond(459, 58, 31, 12, 1, 4, 2007);

        
Date d0 = new Date(m0.getFirstMillisecond());
        
Date end = new Date(m1.getLastMillisecond());

        
DateTickUnit unit = new DateTickUnit(DateTickUnitType.MILLISECOND, 1);
        
axis.setTickUnit(unit);

        
// START: check d0
        
axis.setTickMarkPosition(DateTickMarkPosition.START);

        
axis.setRange(d0, end);
        
Date psd = axis.previousStandardDate(d0, unit);
        
Date nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d0.getTime());
        
assertTrue(nsd.getTime() >= d0.getTime());

        
// MIDDLE: check d0
        
axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);

        
axis.setRange(d0, end);
        
psd = axis.previousStandardDate(d0, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d0.getTime());
        
assertTrue(nsd.getTime() >= d0.getTime());

        
// END: check d0
        
axis.setTickMarkPosition(DateTickMarkPosition.END);

        
axis.setRange(d0, end);
        
psd = axis.previousStandardDate(d0, unit);
        
nsd = unit.addToDate(psd, TimeZone.getDefault());
        
assertTrue(psd.getTime() < d0.getTime());
        
assertTrue(nsd.getTime() >= d0.getTime());
    
}

    
/**
     
* A basic check for the testPreviousStandardDate() method when the
     
* tick unit is 10 milliseconds (just for the sake of having a multiple).
     
*/

    
@Test
    
public void testPreviousStandardDateMillisecondB() {
        
MyDateAxis axis = new MyDateAxis("Millisecond");
        
Millisecond m0 = new Millisecond(458, 58, 31, 12, 1, 4, 2007);
        
Millisecond m1 = new Millisecond(459, 58, 31, 12, 1, 4, 2007);